Txoj Cai Ua Haujlwm ntawm Txoj hlua LEDs: Kev piav qhia dav
Cov hlua LEDs, feem ntau hu ua LED teeb hlua, tau dhau los ua ib qho chaw nyob hauv lub neej niaj hnub no, ua kom zoo nkauj hauv tsev thaum hnub so, teeb pom kev lag luam hauv cheeb tsam, thiab ua kom zoo nkauj sab nraum zoov. Lawv qhov kev thov rov hais dua tshwm sim los ntawm qhov zoo xws li kev siv hluav taws xob, kev ua neej ntev, thiab kev tsim kho kom haum, tab sis paub tias lawv ua haujlwm li cas xav tau khawb rau hauv lawv cov khoom, circuit architecture, thiab lub teeb -emitting txheej txheem. Kab lus no mus rau hauv lub cev hauv qab txoj hlua LEDs, los ntawm ib tus neeg diodes mus rau kev sib koom ua ke, kom paub meej lawv cov qauv kev ua haujlwm.
Nyob hauv nruab nrab ntawm txhua tushlua LEDyog lub teeb -emitting diode (LED), ib qho khoom siv hluav taws xob uas hloov hluav taws xob ncaj qha rau hauv lub teeb. Tsis zoo li cov qhov muag teeb pom kev zoo, uas tso siab rau cua sov lub teeb kom tsim lub teeb (tus txheej txheem uas poob ntau lub zog raws li cua sov), LEDs ua haujlwm ntawm lub tswv yim ntawm electroluminescence.Txhua LED nyob rau hauv ib txoj hluaMuaj ob peb yam tseem ceeb: semiconductor nti, ob lub electrodes (anode thiab cathode), lub lens, thiab lub dab dej kub (feem ntau shrunk rau txoj hlua siv). Lub nti semiconductor feem ntau yog tsim los ntawm cov ntaub ntawv xws li gallium arsenide (GaAs) lossis gallium phosphide (GaP), doped nrog impurities los tsim ap-n junction- ib thaj tsam ntawm qhov zoo them "p- hom" cheeb tsam thiab qhov tsis zoo them hom "n" cheeb tsam {4} Thaum muab hluav taws xob tam sim no rau LED, cov khoom siv hluav taws xob los ntawm n- hom cheeb tsam taug kev hla p-n kev sib tshuam thiab rov ua dua nrog "qhov" (tsis muaj hluav taws xob) hauv thaj tsam p- hom. Qhov no recombination tso tawm lub zog nyob rau hauv daim ntawv ntawm photons, uas yog pom raws li lub teeb. Cov xim ntawm lub teeb nyob ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv semiconductor: qhov sib txawv me me ua rau lub teeb liab lossis daj, thaum qhov khoob loj tsim lub teeb xiav lossis violet (dawb LEDs, feem ntau siv hauv cov hlua teeb, feem ntau xiav LEDs coated nrog phosphor uas hloov qee lub teeb xiav rau daj, sib xyaw ua xim dawb).
Cov hlua LEDssib txawv ntawm solo LEDs loj heev hauv lawv cov qauv hauv Circuit Court, uas sib sau ua ke ntau lub diodes rau hauv ib qho, siv tau. Ob qhov kev tsim hluav taws xob ntau tshaj plaws rau txoj hlua LEDs yog series circuits thiab parallel circuits, txhua tus muaj cov yam ntxwv ua haujlwm tshwj xeeb. Nyob rau hauv ib txoj hlua LED, tag nrho cov LEDs tau txuas kawg - mus rau - xaus rau hauv ib txoj kev, txhais tau tias cov hluav taws xob tam sim no taug kev los ntawm txhua lub LED ib zaug. Qhov kev tsim no muaj qhov zoo tshaj plaws: nws yuav tsum muaj qhov qis dua los ua haujlwm, raws li tib lub sijhawm tam sim no mus los ntawm txhua lub diode. Txawm li cas los xij, cov kab hluav taws xob sib txuas muaj qhov txwv loj: yog tias ib qho LED tsis ua haujlwm (piv txwv li, kub hnyiab los yog raug rho tawm), tag nrho Circuit Court cuam tshuam, thiab tag nrho cov LEDs hauv txoj hlua tsis ua haujlwm. Qhov no yog ib qho tseem ceeb. Txhawm rau muab cov kev daws teeb meem rau qhov teeb meem no, niaj hnub series hlua LEDs nquag koom nrog shunt resistors lossis Zener diodes nyob rau tib lub sijhawm nrog txhua LED. Lub shunt resistor ua hauj lwm raws li ib tug bypass channel rau tam sim no nyob rau hauv cov kev tshwm sim uas ib tug LED tsis ua hauj lwm zoo. Thaum ib qho LED hlawv tawm, nws qhov kev tiv thaiv ua rau siab heev, uas ua rau tam sim no ntws los ntawm shunt resistor hloov. Qhov no tso cai rau tus so ntawm txoj hlua txuas ntxiv kom pom lub teeb. Zener diodes ua haujlwm zoo ib yam li LEDs, tab sis lawv kuj tswj tau qhov hluav taws xob, yog li tshem tawm cov hluav taws xob hluav taws xob uas yuav ua rau muaj teeb meem rau LED.
Parallel hlua LEDs, ntawm qhov tod tes,txuas txhua LEDhla tib ob txoj kab hluav taws xob. Qhov no ua kom ntseeg tau tias txhua lub diode tau txais tib qhov voltage ntawm nws tus kheej. Qhov teeb meem "ib- tsis ua haujlwm- tawg-tag nrho" yog qhov teeb meem los ntawm tus qauv tsim, uas ua kom ntseeg tau tias txawm tias ib qho LED tsis ua haujlwm, lwm tus yuav txuas ntxiv ua haujlwm ib txwm vim lawv txoj kev tam sim no txawv ntawm ib leeg. LEDs tuaj yeem raug ntxiv lossis tshem tawm los ntawm cov kab hluav taws xob sib txuas yam tsis muaj kev cuam tshuam rau tag nrho cov tam sim no lossis qhov hluav taws xob, uas ua rau nws muaj peev xwm rau cov kab hluav taws xob sib txuas kom yooj yim rau kev hloov kho yooj yim. Parallel designs, ntawm qhov tod tes, hu rau qhov loj dua tam sim no vim tias txhua lub LED rub nws tus kheej tam sim no los ntawm cov khoom siv hluav taws xob. Parallel hlua LEDs feem ntau suav nrog ib qho tam sim no - txwv cov resistor nyob rau hauv series nrog txhua LED los yog ib qho tam sim no - txwv resistor rau tag nrho cov Circuit Court (nyob ntawm tus tsim). Qhov no yog ua los txhawm rau tswj xyuas cov dej ntws tam sim no. Cov resistors no tiv thaiv ntau dhau ntawm tam sim no los ntawm LEDs, uas yuav txwv tsis pub coj mus rau LEDs overheating thiab txo lawv lub neej ua haujlwm. Integrated circuits (ICs) yog siv los ntawm qee cov hlua sib txuas niaj hnub txhawm rau saib xyuas thiab hloov qhov tam sim no. Qhov no yuav pab kom ntseeg tau tias qhov ci ntawm tag nrho cov LEDs tseem tsis sib xws.
Tsis tas li ntawd, cov khoom siv hluav taws xob yog qhov tseem ceeb ntawm cov hlua LEDs. Nws yog lub luag haujlwm rau kev hloov pauv cov pa hluav taws xob AC (alternating tam sim no) uas tau muab los ntawm cov phab ntsa hluav taws xob mus rau qhov qis -voltage DC (direct tam sim no) uas tsim nyog rau LED muaj nuj nqi. Rectification, uas yog cov txheej txheem ntawm kev hloov pauv tam sim no (AC) mus rau tam sim no ncaj qha (DC), thiab kev tswj hluav taws xob, uas yog cov txheej txheem ntawm kev txo qis tus qauv 120V lossis 230V AC mus rau qhov tsim nyog DC voltage rau txoj hlua, yog ob lub luag haujlwm tseem ceeb uas lub hwj huam mov, uas feem ntau yog ib qho me me adapter los yog ua - hauv module, ua. Siv 50-LED series hlua ua piv txwv, nws muaj peev xwm hais tias nws yuav xav tau 120V AC (vim txhua lub LED xav tau ib puag ncig 2.4V, 50 × 2.4V=120V). Qhov no yuav tshem tawm qhov yuav tsum tau ua rau lub tshuab hluav taws xob txo qis. Ntawm qhov tod tes, ib txoj hlua sib txuas uas muaj kaum LEDs, txhua qhov xav tau 3V, yuav tsum tau siv 3V DC adaptor. Qhov no yog vim hais tias txhua LED tau txais lub zog ncaj qha los ntawm 3V qhov chaw. Txhawm rau tiv thaiv cov dej noo, qee cov hlua LEDs, tshwj xeeb tshaj yog cov uas siv sab nraud, tuaj yeem nruab nrog cov khoom siv hluav taws xob tsis zoo. Qhov no yog ib qho tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab kev ua neej ntev.
Tsis tas li ntawd, kev tswj cov thev naus laus zis tso cai rau cov neeg siv los tswj lub teeb ci ntawmcov hlua LEDs, hloov cov xim ntawm LEDs, thiab tsim cov qauv dynamic (xws li flashing, fading, lossis chasing). Qhov no txuas ntxiv nthuav cov txiaj ntsig ntawm txoj hlua LEDs. Integrated circuits (ICs) lossis microcontrollers yog lub zog tsav tom qab cov kev tswj hwm no. Lawv yog lub luag haujlwm rau kev tswj cov tam sim no lossis qhov hluav taws xob uas tau muab rau LEDs. Dimmering, piv txwv li, feem ntau ua tiav los ntawm kev siv Pulse Width Modulation (PWM), uas yog ib txoj hauv kev uas lub voj voog sib xyaw ua ke (IC) sai sai flicks LEDs rau thiab tawm (ntawm qhov nrawm nrawm rau tib neeg qhov muag pom). Kev sib xyaw ua ke (IC) yog lub luag haujlwm rau kev tswj qhov pom kev ci ntsa iab los ntawm kev tswj lub sijhawm "nyob" (mem tes dav) nyob rau hauv kev sib raug zoo rau lub sijhawm "tawm". Ntev ntev "rau" ua rau lub teeb ci dua, thaum lub sij hawm luv luv ua rau cov LEDs nyob twj ywm. Txawm li cas los xij RGB (liab-ntsuab-xiav) LEDs, uas muaj peb lub diodes ywj siab rau lub teeb liab, ntsuab, thiab xiav, lossis LEDs chaw nyob, uas txhua tus muaj lawv tus kheej sib xyaw ua ke thiab tso cai rau kev tswj hwm tus kheej, yog siv los tsim cov hlua LED uas hloov xim. Txhawm rau tsim kom muaj ntau lab xim, qhov sib xyaw ua ke (IC) hloov kho tam sim no uas ntws los ntawm txhua qhov xim diode hauv RGB cov hlua. Qhov no tso cai rau IC los ua ke liab, ntsuab, thiab xiav hauv ntau qhov sib txawv. Txhua LED tuaj yeem tswj tau nyias, tso cai rau cov hlua kom pom cov teeb txav, gradients, lossis cov qauv tsim. Qhov no yog txhua yam tswj hwm los ntawm microcontroller, uas feem ntau txuas nrog lub chaw taws teeb tswj lossis smartphone app rau cov neeg siv nkag. LEDs chaw nyob, xws li WS2812B chips, ua rau nws muaj peev xwm tsim cov qauv nyuaj.
Kev ua haujlwm ntev thiab kev nyab xeeb kuj yog qhov tseem ceeb hauv kev tsim cov hlua LEDs, thiab cov haujlwm no tau txuas nrog cov ntsiab lus tseem ceeb uas tswj hwm lawv txoj haujlwm. LED hlua teeb tso tawm cov cua sov me ntsis, uas ua rau lawv muaj kev nyab xeeb dua los siv ze ntawm cov khoom siv hluav taws xob (xws li cov ntoo Christmas thiab cov ntaub dai kom zoo nkauj), tsis zoo li cov hlua hluav taws xob, uas ua rau muaj cua sov ntau, uas ua rau muaj kev phom sij ntawm cov neeg tua hluav taws pib hluav taws. Ib qho ntxiv uas ua rau lub neej ntev ntawm txoj hlua LEDs yog lawv cov khoom siv hluav taws xob tsawg. Feem ntau ntawmcov hlua LEDsmuaj lub neej ntev ntawm 50,000-100,000 teev, hos cov hlua incandescent muaj lub neej ntev ntawm 1,000-2,000 teev. Tsis tas li ntawd, lub kaw lus kaw ntawm ntau txoj hlua LEDs (uas feem ntau yog tsim los ntawm yas lossis silicone) tiv thaiv cov diodes thiab circuits los ntawm plua plav, ya raws, thiab lub cev puas tsuaj, uas ua rau lawv siv tau rau hauv tsev thiab sab nraum zoov. Muaj lwm yam kev ntsuas kev nyab xeeb xws li fuses thiab Circuit Court breakers. Fuse blowers yog tsim los tiv thaiv overheating thiab hluav taws xob hluav taws xob los ntawm kev tso tawm lawv cov tam sim no yog tias qhov tam sim no tshaj qhov kev nyab xeeb (piv txwv li, vim yog qhov luv luv).
Cov hlua LEDs muab ntau qhov txiaj ntsig tseem ceeb, ib qho ntawm cov kev ua haujlwm ntawm lub zog uas tau tsim hauv lawv cov qauv kev ua haujlwm. LEDs muaj peev xwm hloov dua 90% ntawm lub zog hluav taws xob mus rau hauv lub teeb, whereas incandescent qhov muag teev tsuas yog hloov 10% ntawm lub zog rau hauv lub teeb. Yog li ntawd, LEDs siv zog tsawg dua los muab tib theem ntawm qhov ci. Ib qho piv txwv ntawm qhov no yuav yog ib txoj hlua incandescent nrog tsib caug qhov muag teev uas siv plaub caug mus rau tsib caug watts, tab sis ib txoj hlua LED zoo tib yam siv ob mus rau tsib watts xwb. Cov hlua LED yog qhov tsim nyog rau kev siv lub sijhawm ntev (piv txwv li, xyoo- teeb pom kev sab nraum zoov) thiab rau cov ntawv thov uas siv hluav taws xob tsawg (piv txwv li, roj teeb- siv hlua teeb rau kev mus pw hav zoov lossis kho kom zoo nkauj ib ntus). Qhov kev ua tau zoo no tsis yog tsuas yog txiav cov nqi hluav taws xob xwb tab sis kuj tseem ua rau cov hlua LEDs tsim nyog siv rau hauv cov xwm txheej thaum lub zog txwv. Cov hlua LEDs uas siv los ntawm cov roj teeb feem ntau ua rau siv tsawg-voltage DC roj teeb (xws li AA lossis AAA) thiab muaj lub zog-txuag nta xws li pib- kaw, uas yog tsim los txuas ntxiv lub roj teeb lub neej.
Cov hlua LEDs tuaj yeem ua haujlwm los ntawm kev sib txuas cov khoom siv hluav taws xob zoo ntawm ib tus neeg LEDs nrog cov qauv tsim tshwj xeeb, lub zog hluav taws xob, thiab kev tswj cov thev naus laus zis. Hauv lwm lo lus, hlua LEDs ua lawv txoj haujlwm. Los ntawm cov txheej txheem ntawm semiconductor recombination, txhua LED muaj peev xwm hloov hluav taws xob rau hauv lub teeb. Circuits uas txuas ob peb LEDs nyob rau hauv series los yog parallel yog li ntawd muaj peev xwm tsim ib tug ua hauj lwm system. Standard alternating tam sim no (AC) hluav taws xob hloov mus rau hauv qhov tam sim no ncaj qha (DC) voltage uas LEDs xav tau, thiab integrated circuits (ICs) los yog microcontrollers tso cai rau customization ntawm brightness, xim, thiab cov qauv. Cov kev txiav txim siab tsim qauv no yog lub luag haujlwm ncaj qha rau lawv cov kev ua tau zoo, kev nyab xeeb, thiab kev ua haujlwm ntev, uas ua rau lawv muaj kev xaiv zoo dua rau cov teeb pom kev zoo ntawm cov teeb pom kev zoo. Txoj hlua LEDs txuas ntxiv txhim kho raws li thev naus laus zis nce ntxiv, ua rau cov kev tswj hwm uas muaj kev txawj ntse ntau dua, ua kom pom kev ci ntsa iab, thiab cov khoom siv ntau dua ib puag ncig. Qhov no ntxiv dag zog rau nws txoj haujlwm raws li kev xaiv teeb pom kev zoo rau ntau lub tsev, tuam txhab, thiab thaj chaw pej xeem.
https://www.benweilight.com/industrial-lighting/led-construction-string-light-100ft-130w.html
Ua ke, peb ua kom nws zoo dua.
Shenzhen Benwei Teeb pom kev zoo Technology Co., Ltd
Txawb/Whatsapp :({0}})18673599565
Email: bwzm15@benweilighting.com
Skype: benweilight88
Lub Vev Xaib: www.benweilight.com
Ntxiv: F Tsev, Yuanfen Industrial Zone, Longhua, Bao'an District, Shenzhen, Suav
